Results 161 to 170 of about 15,733 (218)
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Journal of Rare Earths, 2021
Abstract In this comparative study, Tb and Tm substituted Sr-hexaferrites (HFs) with the chemical compositions of SrTbxFe12−xO19 and SrTmxFe12−xO19 (x = 0.00, 0.02 and 0.04) were fabricated via citrate sol-gel approach. The AC susceptibility and FC-ZFC magnetization were investigated.
Y. Slimani +4 more
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Abstract In this comparative study, Tb and Tm substituted Sr-hexaferrites (HFs) with the chemical compositions of SrTbxFe12−xO19 and SrTmxFe12−xO19 (x = 0.00, 0.02 and 0.04) were fabricated via citrate sol-gel approach. The AC susceptibility and FC-ZFC magnetization were investigated.
Y. Slimani +4 more
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2023
The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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Journal of Alloys and Compounds, 2020
Abstract The hexagonal SrFe12O19 and BaFe12O19 ferrites have a high magnetocrystalline anisotropy due to the ions at the 2 b site. The axial component at the 2 b site is weakened by the Ru doping, as it is reflected in the xrd refinements and the FT-IR spectra.
Yidi Chang +6 more
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Abstract The hexagonal SrFe12O19 and BaFe12O19 ferrites have a high magnetocrystalline anisotropy due to the ions at the 2 b site. The axial component at the 2 b site is weakened by the Ru doping, as it is reflected in the xrd refinements and the FT-IR spectra.
Yidi Chang +6 more
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Nuclear Physics, 1965
Abstract Gamma radiation studies on the O18(d, pγ)O19 reaction have established that the 0.096 MeV state and ground state of O19 have angular momentum assignments of 3 2 and 5 2 , respectively. The 1.47 MeV state is shown to de-excite with a relative intensity of 96.5 ± 1.6% to the 0.096 MeV state and of 3.5±1.6% to the ground state ...
J.P. Allen +3 more
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Abstract Gamma radiation studies on the O18(d, pγ)O19 reaction have established that the 0.096 MeV state and ground state of O19 have angular momentum assignments of 3 2 and 5 2 , respectively. The 1.47 MeV state is shown to de-excite with a relative intensity of 96.5 ± 1.6% to the 0.096 MeV state and of 3.5±1.6% to the ground state ...
J.P. Allen +3 more
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Structure of the O19 antigen of xanthomonas maltophilia
Carbohydrate Research, 1993The O-specific polymer from a strain of Xanthomonas maltophilia O19 contains D-glucose, L-rhamnose, and D-fucose. By means of chemical degradations and NMR studies, the repeating unit of the polymer was determined to be a branched tetrasaccharide of the structure shown. [formula: see text]
A M, Winn +3 more
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O19. Stem cell functionality in the mouse spermatogenesis
Differentiation, 2010In mammalian testis, numerous sperms are produced persistently for a prolonged period, which plays an essential role for the continuity of life. It is generally considered that ‘stem cells’ that are both capable of self-renewal and differentiation supports the continuity of spermatogenesis.
Shosei Yoshida +3 more
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Physics Letters, 1962
Parameters for even- and odd-state interactions are applied to calculate the O/sup 19/ energy-level spectrum. Additional data can aid in distinguishing between the different sets of parameters. (L.N.N.)
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Parameters for even- and odd-state interactions are applied to calculate the O/sup 19/ energy-level spectrum. Additional data can aid in distinguishing between the different sets of parameters. (L.N.N.)
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Structure of the O-polysaccharide of Providencia alcalifaciens O19
Carbohydrate Research, 2004Studies of the O-polysaccharide chain of the lipopolysaccharide (O-antigen) of Providencia alcalifaciens O19 by sugar and methylation analyses along with NMR spectroscopy, including 2D 1H,1H COSY, TOCSY, NOESY and 1H,13C HSQC experiments, showed that the pentasaccharide repeating unit of the polysaccharide has the following structure: [structure: see ...
Nina A, Kocharova +7 more
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